Having recently purchased a pair of akg k712 headphones, they are revealing so much sound wise. However, they need more volume than my monitor and Shure headphones, and this has highlighted interference.
Having looked at the inputs into my DB4 Allen and Heath, I’ve narrowed it down to the inputs on the Digitone being the culprit; one of the inputs has a TS audio cable coming in from my DFAM. If I disconnect this cable, the interference goes.
I’ve tried 3 different cables but the interference remains.
I have two Octatracks and the Digitone going into the DB4 and none of them present this problem. If I really boost the volume, white noise appears as you’d expect. But the interference from the Digitone inputs is changing pitch and sounds like electrical interference.
I’m wondering if I need to look at the volumes at all the stages from the DFAM to the mixer and whether I’m increasing the noise floor incrementally.
The interference exists even when the cable is unplugged from the DFAM; simply having the cable in the Digitone is enough.
What should my next steps be?